Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a part in your hybrid or electric car that helps keep the battery cool is getting too hot or using too much power.
The P0E22 code indicates an issue with the control circuit of the hybrid/EV battery pack coolant control valve C, where the driver current or temperature has exceeded normal limits.
This code is set when the control module detects that the current or temperature in the control circuit for the battery pack coolant control valve C is too high. This could be due to a short circuit, high resistance, or a malfunctioning valve.
• Check Engine Light is on
• Overheating of the battery pack
• Reduced vehicle performance
• Faulty battery pack coolant control valve C
• Wiring issues such as a short circuit or high resistance
• Malfunctioning control module
OBD-II: On-Board Diagnostics, a system to monitor vehicle performance.
Coolant Control Valve: A valve that regulates the flow of coolant to maintain optimal temperature.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the coolant control valve C.
• Test the coolant control valve C for proper operation.
• Replace the faulty coolant control valve C.
• Repair or replace damaged wiring or connectors.
• Update or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks on the cooling system
• Ensure proper coolant levels
• Inspect wiring periodically
Control Circuit Issue
• Avoid driving the vehicle until the issue is resolved to prevent battery damage.
• Consult with a professional mechanic for diagnosis and repair.
Repairs may be covered under the vehicle's powertrain or emissions warranty.
This code has become more common with the increasing prevalence of hybrid and electric vehicles, highlighting the importance of battery cooling systems.
High – Immediate attention is required to prevent battery damage.
Ignoring this code can lead to battery damage and potential safety hazards.
• Vehicle at operating temperature
• Battery cooling system active
The coolant control valve C is typically located near the battery pack within the vehicle's cooling system.
Q: Can I drive with a P0E22 code?
A: It's not recommended to drive with this code active, as it can lead to battery damage.
Q: How do I reset the P0E22 code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is fixed first.
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